Identify all answer choices that best complete the question. The ability of an organism to cause infection is determined by:

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Quizplus · Accepted Answer

All of the choices contribute to an organism's ability to cause infection. Virulence describes the severity of the disease caused by an organism. The portal of entry determines where the organism enters the body and can affect the severity of infection. The host's immune system can prevent or limit infection, while the number of organisms can impact the initial infection and potential for spread.

Identify All Answer Choices That Best Complete the Question